Trail Running Calendar United Kingdom 2026-2027

Welcome to the most comprehensive guide to trail races in the UK for 2026-2027! Our curated list features an impressive 2230 trail runs across the enchanting landscapes of Scotland, and Wales. From the iconic trails of London's green outskirts to the rugged terrains near Birmingham, from Glasgow's scenic paths to Liverpool's historic routes, we've got every trail enthusiast covered.

Whether you're a seasoned trail runner looking for your next challenge or a newbie eager to explore the world of off-road running, our calendar is your one-stop solution. Dive deep into the details by searching for a specific location or simply browse through to discover new trail runs. Looking for all running events? Check out the complete Running Calendar United Kingdom on running.life.

A 32 mile trail through the Cambrian Mountains from Camp Plas near Dolanog, capped at 100 runners and fully marked with checkpoints and a 14 hour cut off. The weekend includes on-site camping, catering, live music and lakeside activities.

SkyRun the Mournes features three demanding skyrunning races in the scenic Mourne mountains. Runners can choose from distances of 50 km, 35 km, or 20 km, each with significant elevation gain. The event is scheduled for October 10th, 2026.

Test your mountain skills at the Langdale Horseshoe, a 21.1 km fell race through some of the Lake District's most challenging terrain. This classic event features over 1450 m of ascent across rocky ground and pathless fells.

A 50k mostly off-road ultramarathon on Bennachie with over 5000 ft of ascent, visiting multiple peaks and starting and finishing at the Bennachie Visitor Centre. Pre-entry only with 150 places and a 4 hour cut-off at about 19 miles.

Trail event at Box Hill, Surrey offering 21K, 31K and 50K options on marked routes with marshal support, chip timed results and a finish village with a themed medal and free race photos.

A circular 55 km trail ultra in the Forest of Dean using a GPX navigation route. The course mixes technical single track, riverside sections and viewpoints, includes on-course aid stations and a canicross category.

A mainly off-road 8.9 km race with 267 m of ascent around Tideswell and Litton, passing Peters Stone and the trig point at Hay Cop before finishing at Bishop Pursglove Primary School.

A ten hour lap event at Pippingford Park where participants aim to complete ten laps of roughly three, four or five mile loops. Each lap must finish back at the race village within the hour and the final grade is set by the shortest loop co..

A half marathon and 10K through Epping Forest, London on 10 October 2026, run on marked woodland trails with aid stations, chip timing and an eco friendly focus.

A 13.1 mile trail race around Drone Valley Brewery in Unstone with varied terrain, about 1,700 feet of ascent, one halfway aid station, a finisher medal and a voucher for a pint or non alcoholic drink.

A trail running festival in Aberfoyle on 10 October 2026 that marks its third edition, featuring the returning half marathon and a 63 km ultra across multiple race options.

A military‑inspired obstacle mud run at Hever Castle on 10–11 October 2026, offering **3K**, **6K**, and **12K** courses, obstacles modelled on Royal Marines training, a survival experience, and an event village with music and attractions.

A members only LDWA event of about 50 miles in two loops from Crowcombe Village Hall, with routes across the Brendon Hills and the Quantocks in autumn. Mandatory kit, live tracker and recent 30 mile experience are required.

Experience an off road run through the scenic pathways of Rivington starting and finishing at Rivington and Blackrod High School. This trail event is designed for runners with previous half marathon experience.

A 24 hour looped endurance event in Haldon Forest where runners complete one lap every hour and choose distances from 10k to ultramarathon. The final lap decides the winners and all participants receive wooden medals.

Experience a fully waymarked 28 mile ultramarathon from the Scottish coast to the summit of Ben Nevis. This supported mountain adventure features stunning Highland trails and is designed to be accessible for everyday adventurers.

A multi terrain trail event at Endcliffe Park featuring a 10k trail and a 2.5k children's fun run. The event attracts over 1,000 runners annually and uses grass, paved paths and woodland trails.

Trail races in Cannock Chase Forest on 11 October 2026 offering Half Marathon, 10K, 5K and a Junior Race with chip timing, a themed medal, free photos and a serviced event village.

Experience a multi terrain race over Pen Dinas and Constitution Hill starting from the Aberystwyth Promenade. With distances for both seniors and juniors, runners face climbs on gravel, grass, and rocky paths with coastal views.

A 13.5 mile trail half marathon from Housesteads Roman Fort to Tyne Green Country Park in Hexham. The A B route features shuttle transport, staggered group starts, live chip timing and onsite bag drop, and supports a local children's charit..

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